headless-server: enable inotify to support hot-plugged devices

Change-Id: I7d42716cc306129d8a670aa6f8a10c94bebcf034

diff --git a/configure.ac b/configure.ac
index 611ca80..8593417 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -319,10 +319,12 @@ HEADLESS_SERVER_REQUIRES="wayland-server capi-system-peripheral-io xdg-shell-uns
 PKG_CHECK_MODULES(HEADLESS_SERVER, $[HEADLESS_SERVER_REQUIRES])
 HEADLESS_SERVER_CFLAGS="$PEPPER_DIR $PEPPER_KEYROUTER_DIR $PEPPER_DEVICEMGR_DIR $PEPPER_EVDEV_DIR $HEADLESS_SERVER_CFLAGS $TBM_CFLAGS"
 HEADLESS_SERVER_CFLAGS="$PEPPER_XKB_DIR $HEADLESS_SERVER_CFLAGS"
+HEADLESS_SERVER_CFLAGS="$PEPPER_INOTIFY_DIR $HEADLESS_SERVER_CFLAGS"
 HEADLESS_SERVER_LIBS="$PEPPER_LIB $PEPPER_LIBS $PEPPER_EVDEV_LIB $PEPPER_EVDEV_LIBS $HEADLESS_SERVER_LIBS $TBM_LIBS"
 HEADLESS_SERVER_LIBS="$PEPPER_KEYROUTER_LIB $PEPPER_KEYROUTER_LIBS $HEADLESS_SERVER_LIBS"
 HEADLESS_SERVER_LIBS="$PEPPER_DEVICEMGR_LIB $PEPPER_DEVICEMGR_LIBS $HEADLESS_SERVER_LIBS"
 HEADLESS_SERVER_LIBS="$PEPPER_XKB_LIB $PEPPER_XKB_LIBS $HEADLESS_SERVER_LIBS"
+HEADLESS_SERVER_LIBS="$PEPPER_INOTIFY_LIB $PEPPER_INOTIFY_LIBS $HEADLESS_SERVER_LIBS"
 
 AC_SUBST(HEADLESS_SERVER_CFLAGS)
 AC_SUBST(HEADLESS_SERVER_LIBS)

diff --git a/src/bin/headless/input.c b/src/bin/headless/input.c
index 494b0a6..9257267 100644 (file)
--- a/src/bin/headless/input.c
+++ b/src/bin/headless/input.c
@@ -25,6 +25,7 @@
 #include <pepper-keyrouter.h>
 #include <pepper-devicemgr.h>
 #include <pepper-xkb.h>
+#include <pepper-inotify.h>
 
 typedef struct
 {
@@ -33,6 +34,7 @@ typedef struct
        pepper_evdev_t *evdev;
        pepper_keyboard_t *keyboard;
        pepper_input_device_t *default_device;
+       pepper_inotify_t *inotify;
 
        pepper_view_t *focus_view;
        pepper_view_t *top_view;
@@ -119,6 +121,30 @@ end:
        headless_input_deinit_event_listeners(hi);
 }
 
+static void
+_cb_handle_inotify_event(uint32_t type, pepper_inotify_event_t *ev, void *data)
+{
+       headless_input_t *hi = data;
+
+       PEPPER_CHECK(hi, return, "Invalid headless input\n");
+
+       switch (type)
+       {
+               case PEPPER_INOTIFY_EVENT_TYPE_CREATE:
+                       pepper_evdev_device_path_add(hi->evdev, pepper_inotify_event_name_get(ev));
+                       break;
+               case PEPPER_INOTIFY_EVENT_TYPE_REMOVE:
+                       pepper_evdev_device_path_remove(hi->evdev, pepper_inotify_event_name_get(ev));
+                       break;
+               case PEPPER_INOTIFY_EVENT_TYPE_MODIFY:
+                       pepper_evdev_device_path_remove(hi->evdev, pepper_inotify_event_name_get(ev));
+                       pepper_evdev_device_path_add(hi->evdev, pepper_inotify_event_name_get(ev));
+                       break;
+               default:
+                       break;
+       }
+}
+
 void
 headless_input_set_focus_view(pepper_compositor_t *compositor, pepper_view_t *focus_view)
 {
@@ -194,6 +220,12 @@ headless_input_deinit_event_listeners(headless_input_t *hi)
 static void
 headless_input_deinit_input(headless_input_t *hi)
 {
+       if (hi->inotify)
+       {
+               pepper_inotify_destroy(hi->inotify);
+               hi->inotify = NULL;
+       }
+
        if (hi->default_device)
        {
                pepper_input_device_destroy(hi->default_device);
@@ -230,6 +262,7 @@ headless_input_init_input(headless_input_t *hi)
        uint32_t probed = 0;
        pepper_bool_t res = PEPPER_FALSE;
        pepper_evdev_t *evdev = NULL;
+       pepper_inotify_t *inotify = NULL;
 
        /* create pepper evdev */
        evdev = pepper_evdev_create(hi->compositor);
@@ -255,6 +288,13 @@ headless_input_init_input(headless_input_t *hi)
 
        PEPPER_TRACE("%d evdev device(s) has been found.\n", probed);
 
+       inotify = pepper_inotify_create(hi->compositor, _cb_handle_inotify_event, hi);
+       PEPPER_CHECK(inotify, goto end, "Failed to create inotify\n");
+
+       pepper_inotify_add(inotify, "/dev/input/");
+
+       hi->inotify = inotify;
+
        return PEPPER_TRUE;
 
 end: